LM555CM/NOPB

Programmable Timers And Oscillators Overview

The LM555CM/NOPB is a standard bipolar timer IC manufactured by Texas Instruments, housed in an 8-pin SOIC surface-mount package. It operates within a supply voltage range of 4.5 V to 16 V and supports a maximum frequency of 100 kHz. The device draws a typical operating supply current of 3 mA and provides high-level and low-level output currents of 200 mA each. Designed for commercial temperature ranges, it functions between 0°C and +70°C with a maximum power dissipation of 1.18 W.

Programmable Timers And Oscillators Feature Summary

• Standard 555 timer architecture providing precise time delay and frequency generation
• High output drive capability with 200 mA sink and source currents
• Compatible with TTL logic levels across the specified supply voltage range
• Available in an 8-pin SOIC (N) surface-mount package

Programmable Timers And Oscillators Applications

• Precision timing circuits
• Pulse generation systems
• Logic clock signals
• Time delay oscillators

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as per the manufacturer's datasheet. Confirm the package designation 'CM' corresponds to the SOIC-8 variant. Ensure the component meets the required commercial temperature grade of 0°C to +70°C for the intended application environment.

Programmable Timers And Oscillators Selection Notes

Select this component when bipolar stability and high output current are prioritized over low power consumption. The LM555 requires approximately 3 mA of supply current, which is significantly higher than CMOS alternatives like the LMC555. Use this part for applications requiring robust drive capabilities rather than battery-powered designs.

Programmable Timers And Oscillators Part Context

This model belongs to the industry-standard LM555 family of timers. The 'C' suffix typically denotes the commercial temperature range, while 'M' specifies the SOIC surface-mount package. The '/NOPB' suffix identifies the device as non-plumb and compliant with RoHS directives, distinguishing it from older legacy versions.

Programmable Timers And Oscillators Replacement Considerations

The NE555DR is listed as a parameter-equivalent alternative. Verify pinout compatibility and electrical specifications against the target design requirements before substitution.